Lubricating device



Patented Sept. l5, 1925.

y 1,553,599 BATENT oFF-irc E.

ALFRED@ RODRIGUEZ LPEZ, '0F Temuco, MEXICO.' t

LUBRICAMNG Device.

application. mea December 26, was.rv sieriaino. 682,812.

To all wwm'may camera.'

Be it known that I, ALFREDO RODRIGUFZ' LPEZ, a subject ofi the Kingof Spain, residing at Tampico, in the State of Tamaulipas, Mexico, have invented certain new and useful Improvements in Lubricating Devices, of which the following is a specification.

This invention relates to lubricating devices, and more particularly to automatic grease cups.

An object of the invention is the provision of a grease cup in which the quantity of lubricant may be regulated to meet the requirements in each case.

A further object is to provide a grease vcup having a spring actuated cap, the cap having threads engaging threads on the cup to feed the cap downwardly as it rotates and force the lubricant from the cup.

In the accompanying drawings, I have shown one embodiment of the invention. In this showing:

Figure 1 is a central vertical sectional view,

Figure 2 is a horizontal sectional view on line 2 2 of Figure l, and,

Figure 3 is a similar view on line 3 3 of Figure 1.

Referring to the drawings, the reference numeral 1 designates the cup which is provided with an outlet 2 having a central bore 3. The lower end of the outlet may be threaded, as at 4, to permit the cup to be attached to a machine or other apparatus to be lubricated. The bottom of the cup is provided with threaded openings adapted to receive the lower threaded ends -of tubular guides or posts 5. The cup is threaded eX- teriorly', as at 6, for the reception of a cap. The cap comprises a lower internally threaded portion 7 the threads of which are adapted to mesh With the threads 6, and an upper portion 8 of slightly greater diameter. A plate 9 is arranged in the bottom of the upper portion of the cap and this plate is provided with depending bars 10, adapted to be received in the posts 5. Suitable roller bearings 11 may be arranged between the non-rotatable plate 9 and the cap. The plate 9 is provided with a centrally arranged, upwardly extending p ost 12 forming a central axis `for an operating spring. As shown, a Sprmg 13 11s arranged ia a suitable @Se la sbav? the Blei@ 9, eed.

suitable bearings 15 may be. arranged between, the-spring oase and the plate. The spring'fmoto'r casing isconnectedto the cap at suitable intervals by means of suitable fastening elements 16 to cause the motor case and cap to revolve together. One end of the spring is secured to one of thesey fastening elements as at 16 (see Figure 2)"and the opposite end is secured to the post 12, as at 17. The spring case is provided with a suitable cover 18 and a main coverk19 is arranged over the cap.

In operation, the bars 10 are inserted in the upper ends of the guide posts 5, the spring is wound and the threads on the lower portion of the cap 7 are engaged with the threads 6 for one or two turns. The spring will then revolve the cap and the threaded engagement between the cap and the cup will cause the cap to move downwardly on the cup, forcing the lubricant through the discharge passage 3. The plate 9 serves as a follower to deliver the lubricant from the cup and in addition, carries the center post 12 of the spring.

The strength of the spring should be calculated according to the capacity of the cup and the spring should wind in the opposite direction fromk the cups threads. Wheny the cup is to be refilled. the cap is unscrewed and when about to be removed, the spring is allowed to run down before the bars 10 are lifted from the upper ends of the guide posts.

It is to be understod that the forni of my invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described my invention, I claim:

1. In a device of the character described, a cup, a cap having threadedengagement therewith, a plate arranged in said cap, a spring having one end secured to said plate and one end secured to said cap, hollow posts carried by said cup, and bars depending from said plate and received in said posts to prevent rotation of said plate.

Q In a, device of the character described, a cup, a cap having threaded engagement therewith, ai plate arranged .1.1.1 Sald Cap., e

to said cap, tubular guide members carriedv by said cupand depending members carried by said plate and received in said guide members to prevent rotation of said plate.

3. In a device of the character described,

an externally threaded cup having anoutlet opening in Aits lower end, a cap having an internally threaded adapted to engage the external threads of cylindrical portion tur the cup, a plate arranged in the upper portion of said cap, a central post extending from the upper side of said plate, a spring -having one endl secured tosaid post and the other end secured to said cap, tubular guide members arranged Within said cup, and depending posts carried bv said plate and adapted toybe received n said guide members to prevent rotation of said plate.

In testimony whereof, I ax my signa` AIJFREDORODRIGU'EZ LPEZ; 

